Ricoh MP C2504 - Fusing Sleeve (Center) Error (SC54*-**)

SC No. Type Error Name/Error Condition/Major Cause/Solution
SC540-00 D Fusing Motor: Lock
Motor status is observed at 0.1 sec intervals during motor ON, and the
unlock status is detected at least 20 times.
• Motor defective
• Connector disconnected
• Harness broken
• IOB defective
• Unit torque increased
• Replace the fusing motor.
• Reconnect the connector.
• Replace the harness.
• Replace the paper transport IOB.
Fusing Sleeve (Center) Error (SC54*-**)
SC No. Type Error Name/Error Condition/Major Cause/Solution
SC541-01 A Thermopile (Center) Disconnection
Below -50 degrees C (or below CB) is detected for 0.1 sec continuously.
• Thermopile disconnection
• Connector disconnected
• Harness disconnection between the fusing unit and the BCU
• BCU defective
1. Reconnect the connectors (main machine side, BCU side).
2. Replace the thermopile (center).
3. Replace the harness between the fusing unit and the BCU.
4. Replace the BCU.
6. Troubleshooting
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